Daewoo Nubira/Lacetti Service Manual (MY2004) - Heating, Ventilation & AC.pdf
The V5 HVAC variable displacement compressor along with the thermal expansion valve on the evaporator, constitutes a largely self-regulating system. There is no pressure cycling switch, no high-pressure cut-off switch and no low-pressure cut-off switch. The compressor clutch is controlled by the electronic control module (ECM), which receives data from various engine systems and from a pressure transducer located in the high-pressure refrigerant pipe. In normal operation, the clutch is engaged continuously. Should one of the monitored conditions become abnormal, the ECM will disengage the compressor clutch until normal operation is restored. These conditions include the following:
- Wide-open throttle
- High engine coolant temperature
- High engine RPM
- Refrigerant low pressure
- Refrigerant high pressure
The compressor clutch will remain disengaged until normal.
operation is established.
Contents along with download links:
- SECTION : 7A HEATING AND VENTILATION SYSTEM
- SPECIFICATIONS [ Heater Temperature Specifications ~ Fastener Tightening Specifications ]
- SCHEMATIC AND ROUTING DIAGRAMS [ Non-A/C Diagrams ~ Airflow - Typical ~ Airflow with Rear Heating Duct ]
- DIAGNOSIS [ HEATER SYSTEM ~ Insufficient Heating or Defrosting ~ Blower Electrical ~ Improper Air delivery or No Mode Shift ~ Too Much Heat ~ Controls ~ Blower Noise ]
- MAINTENANCE AND REPAIR [ ON-VEHICLE SERVICE ~ Temperature Cable Adjustment ~ Temperature Control Cable ~ Control Assembly ~ Control Assembly Knob Lighting ~ Heater/Air Distributor Case Assembly ~ Blower Motor ~ High-Blower Relay ~ Blower Resistor ~ Heater Hoses ~ Heater Core ]
- GENERAL DESCRIPTION AND SYSTEM OPERATION [ Heating and Ventilation Systems ]
- SECTION : 7B MANUAL CONTROL HEATING, VENTILATION
- SPECIFICATIONS [ General Specifications ~ Fastener Tightening Specifications ]
- SPECIAL TOOLS [ Special Tools Table ]
- SCHEMATIC AND ROUTING DIAGRAMS [ A/C System - Typical ~ Manual Control A/C Diagram ]
- DIAGNOSIS [ GENERAL DIAGNOSIS ~ Testing the Refrigerant System ~ Insufficient Cooling "Quick Check" Procedure ~ A/C Performance Test ~ Pressure-Temperature Relationship of R-134A ~ Leak Testing Refrigerant System ]
- V5 SYSTEM AIR CONDITIONING DIAGNOSIS [ Insufficient Cooling Diagnosis ]
- SYMPTOM DIAGNOSIS [ Pressure Test Chart (R-134A System) ~ Low and High Side Pressure Relationship Chart ]
- MAINTENANCE AND REPAIR [ ON-VEHICLE SERVICE ~ GENERAL A/C SYSTEM SERVICE PROCEDURES ~ O-Ring Replacement ~ Handling Refrigerant ~ Handling of Refrigerant Lines and Fittings ~ Maintaining Chemical Stability in the Refrigeration System ~ Discharging, Adding Oil, Evacuating, and Charging Procedures for A/C System ]
- SERVICEABLE COMPONENTS [ Components Used In Non-A/C Systems ~ A/C Pressure Transducer ~ A/C Compressor Relay ~ Air Filter ~ A/C Expansion Valve ~ A/C High-Pressure Pipe Line ~ Evaporator Core ~ A/C Suction Hose Assembly ~ A/C Discharge Hose Compressor to Condenser ~ Receiver-Dryer ~ Compressor ~ Condenser ]
- UNIT REPAIR [ COMPONENT LOCATOR ~ V5 Compressor ]
- V5 AIR CONDITIONING COMPRESSOR OVERHAUL [ Clutch Plate and Hub Assembly ~ Clutch Rotor and Bearing ~ Clutch Coil ~ Shaft Seal Replacement ~ Control Valve Assembly ~ Rear Head, Gasket, Valve Plate, Reed Plate, and O-ring ~ Cylinder to Front Head O-ring ~ Leak Testing (External) ]
- GENERAL DESCRIPTION AND SYSTEM OPERATION [ GENERAL INFORMATION ~ The V5 A/C System ~ System Components - Functional ~ System Components - Control ~ V5 Compressor - General Description ~ V5 Compressor - Description of Operation ]
- SECTION : 7D AUTOMATIC TEMPERATURE CONTROL HEATING, VENTILATION, AND AIR CONDITIONING SYSTEM
- SPECIFICATIONS [ Fastener Tightening Specifications ]
- SCHEMATIC AND ROUTING DIAGRAMS [ A/C Sensors/Defoggers and A/C Compressor Controls Diagram ~ A/C Blower and Motor Controls Diagram ]
- DIAGNOSIS [ GENERAL A/C DIAGNOSTICS ]
- V5 SYSTEM AIR CONDITIONING AND AUTOMATIC TEMPERATURE CONTROL (ATC) [ Self-Diagnostic Circuit Check ~ Automatic Temperature Controller Does Not Operate When Ignition Is ON ~ Controller Does Not Illuminate When Light Switch Is ON ~ No Hot Air From Blower ~ No Cool Air From Blower ~ Blower Motor Does Not Run At All ~ Mode Control Do Not Work ~ Air Source Selection Not Controlled ~ Compressor Magnetic Clutch Does Not Engage ]
- DIAGNOSTIC TROUBLE CODES [ Code 1 - In-Car Sensor Error ~ Code 2 - Ambient Air Temperature Sensor Error . ~ Code 3 - Water Sensor Error ~ Code 4 - Air Mix Door Error ~ Code 5 - Sun Sensor Error ~ Code 6 - Power Transistor Error ~ Code 7 - Max-Hi Relay Error ]
- MAINTENANCE AND REPAIR [ ON-VEHICLE SERVICE ]
- GENERAL A/C SYSTEM SERVICE PROCEDURES [ General Service Procedures ]
- SERVICEABLE COMPONENTS [ Common HVAC Components ~ Automatic Temperature Control Assembly ~ Inlet Air Door Motor ~ Mode Door Motor ~ Air Mix Door Motor ~ Water Sensor ~ Ambient Air Temperature Sensor ~ In-Car Temperature Sensor ~ Sun Sensor ~ UNIT REPAIR ]
- V5 AIR CONDITIONING COMPRESSOR OVERHAUL [ Compressor Overhaul ]
- GENERAL DESCRIPTION AND SYSTEM OPERATION [ GENERAL INFORMATION ~ The V5 System ~ System Components - Control ]
Important :You have to navigate posts below to complete the free Daewoo Nubira/Lacetti Service Manual: Daewoo Nubira/Lacetti Service Manual (MY2004) - General Information.pdf, Daewoo Nubira/Lacetti Service Manual (MY2004) - Body & Accessories.pdf, Daewoo Nubira/Lacetti Service Manual (MY2004) - Transaxle Drive Axle.pdf, Daewoo Nubira/Lacetti Service Manual (MY2004) - Brake.pdf, Daewoo Nubira/Lacetti Service Manual (MY2004) - Restraints.pdf, Daewoo Nubira/Lacetti Service Manual (MY2004) - Engine.pdf, Daewoo Nubira/Lacetti Service Manual (MY2004) - Steering.pdf, Daewoo Nubira/Lacetti Service Manual (MY2004) - Suspensions.pdf, Daewoo Nubira/Lacetti Service Manual (MY2004) - Automatic Transmission.pdf.
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